What if the budgerigar's wing is bleeding? Its wings are always afraid to touch the body, and sometimes they will always tremble. Why is there blood on the body?

First, quickly isolate the two. Then there are two options: one is to take it to a pet hospital for treatment; Second, make it better; Third, treat yourself first, and the first task is to stop bleeding. You can dry it with a cloth, wrap it up, and put a cloth between your wings and your body. Then, as for hemostasis, there are spiders at home who can borrow cobwebs. Or if you have Sedum notoginseng, you can also rub the leaves and apply them to the affected area to stop bleeding. Other hemostasis methods are not well understood, but be careful not to get infected. You'd better go to a pet hospital if you can.